Electricity and Control August 2022

PLANT MAINTENANCE, TEST + MEASUREMENT

ƒ Design the new layout ƒ Schedule and coordinate each step of the process ƒ Calculate costs ƒ Disconnect, move, and re-rig equipment ƒ Reroute wiring ƒ Reinstall and reconnect equipment ƒ Start up, test, and troubleshoot the reconfigured line. Some of the less obvious requirements for a new or re configured setup include: ƒ Finding and correcting any EMI problems ƒ Replacing worn-out and outdated equipment and up grading equipment where it makes sense to do so ƒ Ensuring motor drive systems are delivering clean power, free of harmonics and at the right voltage after the move. An electrical system checklist When engineering is occupied with getting the production line laid out and operating, the project manager is focused on staying on schedule, and maintenance is tied up keep ing the rest of the plant’s equipment running, how does one ensure the new electrical installation will work safely and correctly when it is brought back online? How can one en sure upgrade and replacement opportunities are realised? Try using a checklist. It can serve as a map, an agreement

about what is to be done – and when and how – and as a memory aid to make sure everything gets done. At a minimum, a checklist should address: - Safety - Power quality - Voltage drop and voltage unbalance - VFD-related concerns - Grounding - Power and control wiring - Additional items specific to the industry, process

Fluke’s nine-step checklist can be used as a starting point to help plan the production line move.

es, goals, and requirements.

Fluke provides a nine-step checklist, which is available from Comtest and can be used as a starting point to help plan a production line move, to keep it on track, to realise the opportunities for replacements and upgrades, and to help troubleshoot when the move is done. □

For more information visit: www.comtest.co.za

AUGUST 2022 Electricity + Control

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